Size structure of the planktonic community in microcosms with different levels of turbulence

Andrés Cózar; Fidel Echevarría

doi:10.3989/scimar.2005.69n2187

Size structure of the planktonic community in microcosms with different levels of turbulence

Authors

Andrés Cózar Área de Ecología. Facultad de Ciencias del Mar y Ambientales. Universidad de Cádiz - Dipartimento di Scienze Chimiche e dei Biosistemi, Università di Siena
Fidel Echevarría Área de Ecología. Facultad de Ciencias del Mar y Ambientales. Universidad de Cádiz - Centro Andaluz de Ciencia y Tecnología Marina. Universidad de Cádiz

DOI:

https://doi.org/10.3989/scimar.2005.69n2187

Keywords:

turbulence, plankton size spectra, grazing resistant bacteria

Abstract

The evolution of a natural plankton community in two microcosms with well-differentiated turbulence levels (10^-3 W m^-3 and 10^-1 W m^-3) was compared during artificially-generated blooms. Biomass-size spectra were used to assess the effects of the turbulent kinetic energy (TKE) on the plankton community. Picoplankton was the size range least affected. Indirect effects on picoplankton size structure were related to the TKE effects on the predators. Small nanoplankton represented a transitional size range in which small and variable TKE effects were observed. In the diatom size range, the positive TKE effect on these non-swimmers increased progressively with cell size. The results showed that TKE has a combined effect on both biomass and size structure because of the linkage between these community characteristics. On the whole, the changes observed in the community size structure would lead to the uptake of the maximum available free energy.

Downloads

Download data is not yet available.

Downloads

Published

2005-06-30

How to Cite

Cózar A, Echevarría F. Size structure of the planktonic community in microcosms with different levels of turbulence. Sci. mar. [Internet]. 2005Jun.30 [cited 2025Jan.22];69(2):187-9. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/246

Download Citation

Issue

Vol. 69 No. 2 (2005)

Section

Articles

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

© CSIC. Manuscripts published in both the print and online versions of this journal are the property of the Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.

All contents of this electronic edition, except where otherwise noted, are distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. You may read here the basic information and the legal text of the licence. The indication of the CC BY 4.0 licence must be expressly stated in this way when necessary.

Self-archiving in repositories, personal webpages or similar, of any version other than the final version of the work produced by the publisher, is not allowed.